Hello, 1) I've been using "Unix Network Programming" by R. Stevens (1990). Is there any updated Linux Network Programming? I'd like to have an updated ioctl tutorial/handbook. 2)I'm working on a network application and need to fill a menu with the available network interfaces (up). How can I get this info? I think this is quite related to my first question. 3) I also need to "capture" full 802.3 encapsulated IP frames from my LAN and save them to a file. I' ve read about ether taps and packet sockets. What should I use? This is for a group of students who want to play a little bit with "frame decoding". I'd like to get -------------------------------------------------------- | RFC1042 for 802.3 | IP header | UDP header | payload | -------------------------------------------------------- or at least ------------------------------------ | IP header | UDP header | payload | ------------------------------------ Thank you, Matias. -------------- Matias Freytes Laboratorio de Comunicaciones Digitales Universidad Nacional de Cordoba Argentina - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org